We use interrogative pronouns to ask questions. The interrogative pronoun represents the thing that we don't know (what we are asking the question about). There are four main interrogative pronouns: who, whom, what, which
Possessive pronouns are those designating possession. They may also be used as substitutes for noun phrases, and they are typically found at the end of a sentence or clause. There are only a few possessive pronouns in the English language, and there are only two specific rules for using them correctly.
Forming nationality adjectives and nouns from country names is not always simple in English. Use the nationality adjective ending in -ese or -ish with a plural verb, to refer to all people of that nationality. The adjective listed also often refers to the language spoken in the country, although this is not always the case.